CVE-2020-9818 : Security Advisory and Response

An out-of-bounds write issue in Apple products has been addressed with improved bounds checking.

Understanding CVE-2020-9818

What is CVE-2020-9818?

CVE-2020-9818 is a vulnerability in Apple products that could allow an attacker to execute arbitrary code by sending a maliciously crafted mail message.

The Impact of CVE-2020-9818

This vulnerability could lead to unexpected memory modification or application termination when processing a specially crafted mail message.

Technical Details of CVE-2020-9818

Vulnerability Description

The issue involves an out-of-bounds write problem that has been mitigated with enhanced bounds checking.

Affected Systems and Versions

iOS versions less than 13.5 and iPadOS versions less than 13.5
iOS-1 versions less than 12.4.7
watchOS versions less than 6.2.5

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a specifically crafted mail message to the target device.

Mitigation and Prevention

Immediate Steps to Take

Update affected devices to iOS 13.5 and iPadOS 13.5, iOS 12.4.7, or watchOS 6.2.5 to mitigate the vulnerability.
Avoid opening mail messages from unknown or untrusted sources.

Long-Term Security Practices

Regularly update all Apple devices to the latest software versions.
Educate users on recognizing and avoiding suspicious emails.

Patching and Updates

Apply security patches provided by Apple to address the vulnerability.